1.1.16

style(app): polish all 12 Flutter screens to the IDE-dark design system

Multi-agent presentation-only pass (one agent per screen). Every screen now uses
the AppColors tokens instead of hardcoded colors — 145 hardcoded colors removed —
with 4/8-grid spacing, JetBrains Mono for code/paths/hashes/branches, semantic
status colors, bordered surface cards, and proper empty/loading/error states.

Verified:
- flutter analyze lib/ -> No issues found (full type-check clean).
- provider-call multiset (ref.read/watch/listen + notifier methods) IDENTICAL
  per screen before vs after -> behavior wiring provably unchanged.
- spot-checked diffs: presentation-only, no logic/provider/navigation edits.

App 1.0.5 / Desktop 1.1.16. This tag also ships the held server 1.1.14
data-integrity batch (overwrite guards, gitDiscard guard, refresh auditing) to
the desktop.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>